Acoustic detection system

Details Acoustic detection system Acoustic detection system

1989-12-01

1990-10-16

Steinberger, Brian S.

Communications, electrical: acoustic wave systems and devices

Signal transducers

Receivers

367191, 181 05, 181177, 381 57, 381165, H04R 1500

Patent

active

049641000

ABSTRACT:
An acoustic detection device having a parabolic dish antenna for gathering ound waves and providing a first stage of amplification, an exponential horn located at the focus of the parabolic dish antenna for further acoustic amplification, a fluidic gainblock for a final stage of amplification, and acoustic earphones for listening. Either a hand operated latex bulb or a mechanical pump is used to pressurize a plastic fluid storage container that is used to supply fluid to the fluidic gainblock. Within the fluidic gainblock are four or more staged laminar proportional amplifiers having a bandwidth of 0 to 4,000 Hz.

REFERENCES:
patent: 3305043 (1967-02-01), Pfund et al.
patent: 3425430 (1969-02-01), Horton
patent: 4512371 (1985-04-01), Drzewiecki et al.
patent: 4689827 (1987-08-01), Gurney, Jr.
patent: 4850023 (1989-07-01), Yarush
T. M. Drzewiecki, "A Fluidic Audio Intercom", 1980.
Jane's Defense Weekly, p. 116, 28 Jan. 1989.
Nassy Srour, "Isopads", may 1989.
HDL Pamphlet, "New Acoustic Detection System Developed", Jul. 1989.
Harry Diamond Labs, "Scope", pp. 6 & 7, Sep. 1989.
Washington Technology Magazine; p. 24, Oct. 12, 1989.

Affiliated with

Also associated with

Rating

Acoustic detection system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Acoustic detection system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Acoustic detection system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-855350